对网上的版本进行了个小修改~
代码
function createCatalog($obj) {
$obj = preg_replace_callback('/<h([1-6])(.*?)>(.*?)<\/h\1>/i', function ($obj) {
global $catalog;
global $catalog_count;
$catalog_count++;
$catalog[] = array('text' => trim(strip_tags($obj[3])), 'depth' => $obj[1], 'count' => $catalog_count);
return '<h'.$obj[1].$obj[2].'>'.$obj[3].'</h'.$obj[1].'>';
}, $obj);
return $obj;
}
function getCatalog() {
global $catalog;
$index = '';
if ($catalog) {
$index = '<ul>' . "\n";
$prev_depth = '';
$to_depth = 0;
foreach ($catalog as $catalog_item) {
$catalog_depth = $catalog_item['depth'];
if ($prev_depth) {
if ($catalog_depth == $prev_depth) {
$index .= '</li>' . "\n";
} elseif ($catalog_depth > $prev_depth) {
$to_depth++;
$index .= '<ul>' . "\n";
} else {
$to_depth2 = ($to_depth > ($prev_depth - $catalog_depth)) ? ($prev_depth - $catalog_depth) : $to_depth;
if ($to_depth2) {
for ($i = 0; $i < $to_depth2; $i++) {
$index .= '</li>' . "\n" . '</ul>' . "\n";
$to_depth--;
}
}
$index .= '</li>';
}
}
$index .= '<li><a href="#'. $catalog_item['text'] .'">' . $catalog_item['text'] . '</a>';
$prev_depth = $catalog_item['depth'];
}
for ($i = 0; $i <= $to_depth; $i++) {
$index .= '</li>' . "\n" . '</ul>' . "\n";
}
}
echo $index;
}
然后Post.php中进行如下修改
<?php
$content = preg_replace('#<h(.*?)>(.*?)</h(.*?)>#','<h$1 id="$2">$2</h$3>',$this->content);
echo $content;
?>
我自己在使用这个版本的时候添加锚点出现了bug,所以就进行了这些修改。